Motorcycle oil cooler



FIG. 1 is a perspective view of motorcycle oil cooler, showing my new design;

FIG. 2 is a left side elevational view thereof;

FIG. 3 is a right side elevational view thereof;

FIG. 4 is a front elevational view thereof, the rear elevational view being a mirror image;

FIG. 5 is a top plan view thereof; and

FIG. 6 is a bottom plan view thereof. 

The ornamental design for a motorcycle oil cooler, as shown and described. 